Synthesis of heterocyclic aramid nanofibers and high performance nanopaper

Abstract

The construction of heterocyclic aramid nanofibers (HNFs) was reported for the first time in this study by a polymerization-induced self-assembly method. 2-(4-Aminophenyl)-5-aminobenzimidazole was introduced as the third monomer to participate in the polymerization of poly(p-phenylene terephthalamide) and HNFs were successfully prepared based on the balance of the solvent isolation effect and intermolecular interaction. Subsequently, HNFs were fabricated into nanopaper, which has uniform micro-nano structures and significantly improved mechanical properties and electrical insulation.